Panel



@et 7, 1930. w. E. LAND 1,777,317

PANEL emmener. 7, 1930V UNITED SfrMlF-S1'le'z'vrisNrw omas wmnnn. LAND,or'lmcimom), INDIANA Application niet nach 8,1929.' serial No. 345,391.

My invention `relates to panels employed as fixed parts of furniture orin doors and resides in an improved construction thereof.

r.lhe panel of my invention is inclusive of a frame, usuallyrectangular, and a panel board applied to the frame and covering thelopening surrounded thereby. The board is prefi erably made of woodenlaminae with grain of adjacent laminae running relatively crosswise inaccordance with common practice. The frame is also desirably made ofwood and has a circumscribing iange formed integrally therewith and of athickness approximately the thickness of each lamina..1 Suc-h Harige,therefore, partakes of the nature of the panel board applied to theframe, and enlarges the thickness of the border ofthe board thatprojects, with the aforesaid ange, beyond the body of the frame. Theboard is desirably lued or cemented to the frame, the flange ang boardmutually reinforcing each other to prevent warpingand wrinkllng of thecomponent parts of the panel.

@wing to the thinness of the integral flange of the frame, 1 employ alapped butt joint into which the body and ange portions of the frameenter and of such construction as not to impair the strength of the thiniange.

l will explain my invention more fully by 3o referring to theaccompanying drawing in which Fig. 1 is a perspective view illustratingthe preferred embodiment ofthe invention, parts being broken away; Fig.2 1s another perspective view showing the other side of the panel; Fig.3 is a sectional -v1ew on line 3-3 of Fig. 2; Fig. 4 is a perspectiveview .showing the adjacent end portions of two frame members inseparated relation: and Fig. 5. is a sectional view on line 5-5 of 4oFig. 2. s

The frame member of the panel is shown as being rectangular and composedof four wooden .bars 1, 2, 3 and 4 which are preferably joined at thecorners as illustrated. The

4.5 panel board is made of wooden laminae 5,

6 and 7 which are glued together 1n accordance with common practice, thegrain of adjacent laminae running relatively crosswlse. The anel boardis cemented or glued to the pane 4frame and projects beyond the bodyportion 8 thereof on all sides to form a projecting border or flangewith respect to the body portion of the frame.

The body portion of the frame has an out- 'setting flange 9, 10, 11, 12at one face of the 55 frame and in integral formation with the frame andto which lflange the panel board is also glued. '.lhe frame members orbars 1 and 3' are preferably formed with tenons 13,14, 15, 16 at theuniianged face of the frame and 60 the bars 2 and 4 are formed withtenons 17 18, 19, 20 at the flanged face of the frame. rllenons 13 and17 extend in angular directions and lap each other as do also tenons 14and 18, 15 and 19, and 16 and 20. The shoulder` at the C5 base of one ofeach two lappingI tenons has abutting engagement with the adjacent sideof the other of these two tenons. The flange sections l0 and 12 extendto opposite sides of the panel beyond the tenons and the bodies of thebars integral therewith, and abut the shoulders at the'bases of thetenons upon and integral with the frame members 1 and 3 and also abutthe `ends of the ange sections 9 and 11 that are between the flange 75sections 10 and 12 and terminate at said shoulders. l have thus producedjoints in the body portion of the frame having tenons in lappingrelation with each other and in abutting relation with the shoulders atthe base of the tenons and have provided a thin flange continuation ofthe frame made in sections that only have abutting engagement at thecorners of the frame whereby the strength of the flange is not impaired,the joints proper being formed vbetween the comparatively heavy parts ofthe component lbars of the frame.

The flange enlargement of the frame constitutes, in effect, a marginalthickening of the 9G panel board and serves to incorporate the panelframe in one unitary structure withv the panel board. In other words,the integral flanged continuation of the panel frame is a unitary partof the panel board, the body portion of the frame consequently beingintegral with the board structure. All of the component members of thepanel are thus so interlaced that the frame constitutes an efectivereinforcement for the board and the board an effective reinforcement forthe frame, wrinkling and warping of the adjacent glued or cementedtogether parts being conse uently effectively guarded against. I have.(sliown layers 21, 22, 23 of cement or glue in Fig. to illustrate themanner in which the panel bouid and frame fla-nge and frame body nremerged into :1 unitary structure.

Having thus described my invention, I cla1n:

A pu nel structure iluluding u frame having u flange :1t one face of theframe and projecting beyond the frame und integrally formed therewith;und a. panel board cemented to and covering one face of the frame undflange, wherein the frame is polygonal and is formed of bars, adjacentends of adjacent bars being formed with lapping tenons at the corners ofthe frame and respectively integral with such bars, one side of onetenen ut each Corner being in abutting engagement with the shoulder utthe base ol the contiguous tenen, the flange section that is integralwith the bar having the first tenon extending lengthwise of this tenonbeyond the body portion of the frame and also having abutting engagementwith said shoulder and with the contiguous flange section whichterminates at said shoulder.

In Witness whereof, I hereunto subscribe my name.

WALKER E. LAND.

